Roofing element



IYVIaL).7 27, 1930. F. c. OVERBURY 1,759,995

ROOFING ELEMENT V Filed May l5, 1928 Patented May 27, 1930 UNITED ISTATES PATENT f OFFICEl FREDERICK o. OVERBURY, OE HTLLSDALE, NEW zrEnsnmnssrcNoR, :BY MEsNE ASSIGN- MENTS, To THE PATENT AND LICENSING CORPORATION, OE BOSTON, MASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS Y f :ROOEING ELEMENT .Applicaties med' my 15,

This application relates to roofing elements such as shingles, shingle strips, and the like, which are characterized by an vupturned portion of the element along its butt edge, this upturned portion being for the purpose of facilitating the application ofplastic material to the exposed face-of the.

shingle when laid. This application is fui.-y thermore a continuation-in-part of my coil. pending application Serial No. 651,097, filed July 12, 1923. Such plastic may be con? veniently applied as by a trowel or'oth'er suitable instrument, the object being to form on the laid roofing element a thick layer or coating of plasticwhich canreadily be shaped so as to give the appearance of rough tiling, heavy slabs, tapering elements, or

other forms lof finished rooting elements as desired. An object of the present invention 2Q is to supply an element of rooting material `which is particularly adapted to assist in theapplication of plastic by a trowel and to guide the trowel.v vTo this end, a relatively narrow marginall portion along the butt edge l '25 of the roofing element may be bent sharply upward so as to form an angle with the'plane of the roofing e'lementfl The butt edge of thel element is thus elevated a predetermined distance above the plane of the element, thus affording a ready guide for the trowel to determine the thickness of theicoating of plasticapplied to the exposed face of the element after it is laid on a roof. This upturned margin or ridge also serves to retain the plastic in place and to assist the plastic to hold its shape after application.

For a more complete understanding of the invention, reference is had to the description which follows and to the drawing, of which,-

Figure 1 is a perspective view of a roofing element embodying the invention.

, Figure 2 is an end elevation of'ffthe ele-v ment shown in Figure 1.

Referring to the drawing in detail, l() represents a rooting* element which may be in the form of a strip shingle as illustrated, or

. may be in the form of an individual shingle or a strip of roll roofing. Whatever the 1928. Serial No. 277,959.

lhave a certain portion which will be exposed to the weather when laid with other similar elements on a roof. Along the butt edges of the element, a relatively narrow marginal portion 11 is bent upwardly through an angle which may be approximatelyl 90 but, as shown in Figure 2, is preferably somewhat less. This bend results in a ridge extending along the entire butt edge of the roofing element and projecting outwardly and upwardly fromthe body portion of the element. It is apparent that if such an element is laid on a roof, suitable plastic material may be rapidly and easily troweled on to the exposed face of the element. In shaping the plastic after its application to the faceof the element, the trowel or other tool may be run along on the edge of the upturned portion` 11, so that this portion acts as a positive guide for the' trowel. While it is often desirable to lay a roof thenal appearance of which is one of pleasing irregularity, such va result is not the same thing as that from irregularities which arise from obviously poor workmanship. .The presence of the guiding edge 12 tends to minimize the lpossibilities of unpleasingresults due to careless or poor workmanship 'and to facilitate the formation of artistic ment in the course next below on the roof.

lThus the rib 11 may and preferably is entirely embedded or buried in plastic when the roof is finished, the plastic applied to the face of the element above thegib llibeing smoothed over the edge 12. of the rib to bond with plastic applied under the rib. The plastic may, if desired, be applied in variegated colors which may be manipulated to produce a large variety of effects.

The element l() may be made of any suitablematerial which can be readily bent as described. Such material may comprise a base of felted fibers thoroughly saturated with asphalt. This saturated base may,jif desired, have a coating of asphalt thereon al- 100 .though this is not necessary ifthe plastic which is to be applied to the element when laid is thoroughly waterproof in character. If the plastieis asphaltic in composition, it will bind readily with the elements l0 made as described. The element l0 may also be madeof finished asphaltic roofing which in addition to a coating of high melting-point asphalt is surfaced with a layer of crushed grit or the equivalent partially embedded in the asphalt coating. Roofing material of this general description, with or without a coat'- ing of high melting-point asphalt o r a surfacing layer of grit, is semi-flexible in character and may be readily bent through a moderate angle at ordinary temperatures such as 7 0 F., no especial heating being required to effect a successful bend. When thus bent,

such material will ordinarily hold its4 bent shape indefinitely.

Having thus described certain embodiments of this invention, it should be evident to those skilled in the art that various changes and modifications might be made therein Without departing from its spirit or scope as defined by the appended claims.

1. An individual roofing element having the marginal portion along the butt edge thereof bent upwardly and extending at an angle to the plane of the element.

2. An individual roofing element having the marginal portion along the butt edge thereof bent upwardly so that it extends away from the body of the element and makes an acute angle with the plane thereof.

3. A strip shingle having a relatively narrow marginal portion along the butt edge thereof bent upwardly from the plane of the shingle through an acute angle.

4. A roof comprising a plurality of elements of sheet material, each elementhaving an upturned portion along its butt edge, and plastic material overlying said elements and embedding said upturned portions.

5. A roof comprising a plurality of elements of sheet material, each element having an upturned portion along its butt edge, and plastic material of variegated colors overlying said elements and embedding said upturned portions.

'6. A roof comprising a plurality-of elep ments of fibrous and asphaltie sheet material, each element having an upturned portion along its butt edge, and asphaltic' plastic material overlying said elements and embedding said upturned portions.

In testimony whereof I have aHiXed my signature.

" FREDERICK C. GVERBURY. 

